Wednesday, April 10, 2013

The Dangers of Salt and Benefits of Potassium


The American diet is doing more harm to its citizens than almost any other environmental or behavioral factor; overindulgence in foods high in sugar, salt and fat is sickening and killing more people than infectious diseases, alcohol/drug abuse, or firearms.

Maria Abaca discusses new research indicating that the reduction of sodium coupled with an increase in potassium could significantly reduce blood pressure, thereby reducing the risk of heart attack and stroke. 

Although most of the recent dietary news has been about the devastating health effects from the overconsumption of sugary sodas, we can’t ignore our sodium intake, which is significantly higher than the recommended daily amount, and can lead to just as many disastrous health problems later on.[1]

A recent study indicates that lowering dietary salt intake while increasing potassium intake (in the form of fruits and vegetables) could lead to a longer, healthier life.  The study, which was published in the medical journal Hypertension, analyzed data from numerous international sources relating to the effects of sodium and potassium on blood pressure.  The researchers found that even moderate reduction in sodium for one month lowered systolic pressure, and blood pressure in people with hypertension was also significantly reduced, but the numbers were even more impressive when the salt reduction was combined with increased potassium intake.

It is estimated that more than 2 million deaths worldwide could be prevented by the reduction of salt in the diet.  Roughly 67 million adults suffer from high blood pressure in the United States.  According to the Center for Disease Control and Prevention, roughly 70 percent of people who suffer from their first heart attack also have high blood pressure, as do 74 percent of people with chronic heart failure and 77 percent of people who suffer from their first stroke.

The federally recommended daily sodium intake is 2,300 milligrams, about 1,200 less than what the average American consumes.  However, the American Heart Association now recommends only 1,500 mg per day.
 Sodium reduction is difficult in our society, where processed foods and takeout restaurant fare make up a high proportion of the standard American diet.  In fact, the only way to gauge salt intake with any accuracy is to prepare all meals and snacks by hand from scratch.  It may be difficult to reduce the salt content in foods so drastically at first since many of us have grown up consuming meals and snack foods with extremely high amounts of salt, but as the taste receptors grow accustomed to the adjustment, the desire for salt will decrease.

Hopefully, the demand for low-sodium products will cause processed foods industries to yield, and cut back on the amount of salt in their products.  Already, the food companies in the United Kingdom are reducing salt levels in the foods distributed throughout the Great Britain.  According to study author Graham MacGregor, if companies in the United States want to follow suit, it could be beneficial for everyone. “People who eat less salt will live longer so the food companies will be able to make more money.”




[1] Hellmich, Nanci: Cut Salt, Add Potassium, Live Longer, Researchers Say USA Today 4/4/2013 http://www.usatoday.com/story/news/nation/2013/04/04/salt-blood-pressure/2053687/